Dublin Core
Title
Diagonal machine. A small square wooden frame, about a foot wide. A slightly smaller frame slides horizontally out. A brass ball on a string and attached to a pulley on the smaller frame moves diagonally upwards as the frame is slid horizontally.
Identifier
ABDNP:201403a
Description
Demonstration originated by James Ferguson to illustrate that the sum of compound motions at right angles produce a diagonal displacement. Wooden frame sliding element holding with brass ball on rod that slides up rod as frame is moved sideways. Disk "Univ. Abdn. Nat. Phil."
Creator
Patrick Copland
Date
1780-1790
Format
wood, brass, string
255 mm wide, 75 mm deep, height 225 mm
255 mm wide, 75 mm deep, height 225 mm
Type
Physical Object